169428262824961 has 8 divisors (see below), whose sum is σ = 197583979971200. Its totient is φ = 145224225278244.

The previous prime is 169428262824949. The next prime is 169428262825021.

169428262824961 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 169428262824961 - 2²⁵ = 169428229270529 is a prime.

It is a super-2 number, since 2×169428262824961² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (169428262824901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 246979974621 + ... + 246979975306.

It is an arithmetic number, because the mean of its divisors is an integer number (24697997496400).

Almost surely, 2^{169428262824961} is an apocalyptic number.

It is an amenable number.

169428262824961 is a deficient number, since it is larger than the sum of its proper divisors (28155717146239).

169428262824961 is an frugal number, since it uses more digits than its factorization.

169428262824961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493959949948 (or 493959949934 counting only the distinct ones).

The product of its digits is 286654464, while the sum is 70.

The spelling of 169428262824961 in words is "one hundred sixty-nine trillion, four hundred twenty-eight billion, two hundred sixty-two million, eight hundred twenty-four thousand, nine hundred sixty-one".